刀具刚度对钛合金超薄侧壁加工变形的影响  

Influence of Cutting Tool Stiffness on Milling Deformation of Titanium Alloy Super-Thin-Wall

作　　者：章熠鑫[1] 李亮[1] 王涛 马梁栋 崔生富 

机构地区：[1]南京航空航天大学机电学院 [2]中航飞机西安飞机分公司

出　　处：《航空制造技术》2015年第8期70-72,共3页Aeronautical Manufacturing Technology

基　　金：国家科技重大专项(2012ZX04003021);国防技术基础科研项目(C152012C002)资助

摘　　要：以控制钛合金超薄结构件的加工变形、获得良好的表面加工质量为目标,基于薄壁零件加工变形理论模型与铣削加工试验,研究分析了刀具刚度对钛合金超薄侧壁结构加工受力变形及表面粗糙度的影响。通过对比分析刚度刀具铣削钛合金超薄侧壁结构时的加工尺寸精度、表面粗糙度以及切削力,发现合理增加刀具刚度可以有效改善超薄壁结构的加工尺寸精度及表面质量。The goal is to control the deformation of milling titanium alloy super-thin-wall and obtain excellent finished surface. Based on theorically analysis and confirming the experiment result, when milling the titanium alloy super-thin-wall, much attention is payed on the infl uence of the tool stiffness on the whole process stiffness. Two cutting tools with different stiffnesses are used in the experiments, and the machining accuracy, the quality of the finished surface and the cutting force are compromised. The result of the research indicates that, if the stiffness of the cutting tool is increased in a certain scale, the whole process stiffness is better, and the machining accuracy and surface quality could be improved.

关 键 词：钛合金 超薄结构 刀具刚度 加工变形 

分 类 号：V261[航空宇航科学与技术—航空宇航制造工程]